Electronic apparatus having a sensing unit to input a user command adn a method thereof

ABSTRACT

An electronic apparatus includes a housing, a display unit installed in the housing and having a display area to display an image or a menu icon, a sensing unit installed in the housing adjacent to the display unit, having a virtual area to sense an object which is disposed over the display area of the display unit, and having a first camera to photograph and display the virtual area in a photographing mode and a second camera to extract the object from the virtual area and display a sensed image of the extracted object in a sensing mode, and a controller to analyze status of the object according to the sensed image of the object, and to determine the analyzed status of the object as a user input in the sensing mode.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a Continuation Application of U.S. Non-Provisional application Ser. No. 15/440,033, filed on Feb. 23, 2017, which is a Continuation application Ser. No. 15/246,302, filed on Aug. 24, 2016, now U.S. Pat. No. 9,864,511, which is a Continuation application Ser. No. 14/583,537, filed on Dec. 26, 2014, now U.S. Pat. No. 9,454,235, in the United States Patent and Trademark Office, the contents of which are incorporated herein in their entirety by reference.

BACKGROUND OF THE INVENTIVE CONCEPT 1. Field of the Inventive Concept

The present inventive concept relates to an electronic apparatus and method of inputting a user command through a sensing unit thereof.

2. Description of the Related Art

A conventional electronic mobile device, for example, a cellular phone, includes a camera and a display unit having a display area to display an image photographed by the camera. However, a center line of the camera does not correspond to a center line of the display area. Therefore, when an object is disposed over a position of the center line of the display area, an image of the object is displayed on a position different from the center line of the display area of the display unit.

When a user intends to place an object on a position to be disposed over the display area to correspond to a position of the display area in a vertical direction relationship between the position of the object and the position of the display area, an image of the object displayed on the display area is deviated from the intended position.

When a user intends to move an object between positions to be disposed over the display area to correspond to positions of the display area in a vertical direction relationship between the positions of the object and the positions of the display area, an image of the object displayed on the display area is deviated from the intended positions.

Since a position of an object is sensed to be different from a position of a display area, it is difficult to sense a position of an object sensed by a camera to correspond to a position of a point of a display area.

SUMMARY OF THE INVENTIVE CONCEPT

The present inventive concept provides an electronic apparatus to input a user command through a sensing unit having a virtual area overlapping a display area in a vertical direction of the display area in an electronic apparatus.

The present inventive concept provides a method of inputting a user command through a sensing unit having a virtual area overlapping a display area in a vertical direction of the display area in an electronic apparatus.

The present inventive concept provides a computer readable medium to contain computer readable codes as a program to execute a method of inputting a user command through a sensing unit having a virtual area overlapping a display area in a vertical direction of the display area in an electronic apparatus.

Additional features and utilities of the present inventive concept will be set forth in part in the description, which follows and, in part, will be obvious from the description, or may be learned by practice of the present inventive concept.

The foregoing and/or other features and utilities of the present inventive concept may be achieved by providing a mobile device including a housing having a front side and a rear side, an input and output installed in the housing, and comprising a panel on the front side of the housing to receive a user input and to display a photographing image or a menu, a sensing unit installed on the front side of the housing, and having a first camera and a second camera each having a virtual area corresponding to a display area of the panel of the input and output unit, and a controller installed in the housing, and configured to control at least one of the first camera and the second camera, wherein the controller is configured in a photographing mode to control the first camera to photograph the virtual area to generate a first photographing image, and to control the display unit to display the first photographing image in the display area of the panel of the input and output unit, and wherein the controller is configured in a sensing mode to control the second camera to photograph an object of the virtual area disposed to correspond to the display area of the panel of the input and output unit, and is configured to perform a function of the mobile device according to the menu and a state of the object of the virtual area.

The mobile device may further include a memory to store information, and the controller may compare the information and the state of the object and may perform the function of the mobile device according to the menu and the comparison.

The controller may analyze the photographed object of the virtual area to sense the state of the object, and to perform the function of the mobile device according to the menu and the state of the object of the virtual area.

The controller may modify the photographed object of the virtual area with respect to the display area to sense the state of the object, and may perform the function of the mobile device according to the menu and the state of the object of the virtual area.

The controller may determine the state of the object of the virtual area as a user input to the menu, and may perform a function of the mobile device according to the menu and the user input.

The controller may control the second camera to photograph the object of the virtual area when the menu is displayed in the display area.

The controller may control the second camera to generate a second photographing image corresponding to the virtual area, and may extract the object from the second photographing image to sense the state of the object.

The controller may display an image corresponding to the object with respect to the menu displayed on the display area of the panel of the input and output unit.

The controller may control the input and output unit to generate an output of the function of the mobile device. The input and output unit may include an audio element, and the output may include an image output to be displayed on the panel or an audio output to be generated from the audio element.

The mobile device may further include an interface configured to communicate with an external device to transmit or receive data to perform a function of the mobile device. The controller may be configured to perform the function of the mobile device according to the data from the external device, the menu, and the state of the object as the user input to the menu.

The virtual area may include a plurality of sub-objects, one of which has a higher priority than others, and the controller may select the one sub-object as the object corresponding to the menu.

The foregoing and/or other features and utilities of the present inventive concept may also be achieved by providing a method of a mobile device, the method including providing a housing having a front side and a rear side, an input and output installed in the housing and comprising a panel on the front side of the housing to receive a user input and to display a photographing image or a menu, and a sensing unit installed on the front side of the housing, and having a first camera and a second camera each having a virtual area corresponding to a display area of the panel of the input and output unit, using a controller processor installed in the housing, controlling the first camera in a photographing mode to photograph the virtual area to generate a first photographing image, and to control the display unit to display the first photographing image in the display area of the panel of the input and output unit, and using the controller processor, controlling the second camera in a sensing mode to photograph an object of the virtual area disposed to correspond to the display area of the panel of the input and output unit, and performing a function of the mobile device according to the menu and a state of the object of the virtual area.

The mobile device may further include a memory to store information, and the method may further include comparing the information and the state of the object and performing the function of the mobile device according to the menu and the comparison.

The method may further include analyzing the photographed object of the virtual area to sense the state of the object, and performing the function of the mobile device according to the menu and the state of the object of the virtual area.

The method may further include modifying the photographed object of the virtual area with respect to the display area to sense the state of the object, and performing the function of the mobile device according to the menu and the state of the object of the virtual area.

The method may further include determining the state of the object of the virtual area as a user input to the menu, and performing the function of the mobile device according to the menu and the user input.

The second camera may be controlled to photograph the object of the virtual area when the menu is displayed in the display area.

The method may further include generating an output of the function through the panel or an audio element of the input and output unit.

The virtual area may include a plurality of sub-objects, one of which has a higher priority than others, and the method may further include selecting the one sub-object as the object corresponding to the menu.

The foregoing and/or other features and utilities of the present inventive concept may also be achieved by providing a non-transitory computer-readable medium containing computer-readable codes as a program to perform the method described above or hereinafter.

BRIEF DESCRIPTION OF THE DRAWINGS

These and/or other features and utilities of the present general inventive concept will become apparent and more readily appreciated from the following description of the exemplary embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a diagram illustrating an electronic apparatus according to an embodiment of the present inventive concept;

FIG. 2 is a block diagram illustrating an electronic apparatus according to an embodiment of the present inventive concept

FIGS. 3 and 4 are views illustrating a sensing unit and a display screen in an electronic apparatus according to an embodiment of the present general inventive concept;

FIGS. 5 and 6 are views illustrating an object sensed by a sensing unit of an electronic apparatus according to an embodiment of the present inventive concept;

FIGS. 7 and 8 are views illustrating a point of a virtual area to correspond to a display point of a display area in an electronic apparatus according to an embodiment of the present inventive concept;

FIGS. 9 and 10 are views illustrating a status of an object corresponding to a virtual point with respect to a virtual area and a display area in an electronic apparatus according to an embodiment of the present inventive concept;

FIGS. 11 and 12 are views illustrating objects sensed by a sensing unit in an electronic apparatus according to an embodiment of the present inventive concept;

FIG. 13 is a view illustrating a location of a sensing unit in an electronic apparatus according to an embodiment of the present inventive concept;

FIGS. 14A, 14B, 15A, and 15B are views illustrating a virtual area of a sensing unit and a display area of a display unit according to an embodiment of the present inventive concept;

FIG. 16 is a view illustrating a location of a sensing unit in an electronic apparatus according to an embodiment of the present inventive concept;

FIG. 17 is a view illustrating a virtual area of a sensing unit and a display area of a display unit according to an embodiment of the present inventive concept;

FIGS. 18A and 18B are views illustrating a virtual point displayed on a display area of a display unit in an electronic apparatus according to an embodiment of the present inventive concept;

FIGS. 19 and 20 are flowcharts illustrating a method of inputting a user command using a sensing unit in an electronic apparatus according to an embodiment of the present inventive concept;

FIG. 21 is a view illustrating a location of a sensing unit in an electronic apparatus according to an embodiment of the present inventive concept; and

FIGS. 22 and 23 are views illustrating an electronic apparatus having a sensing unit installed thereon according to an embodiment of the present general inventive concept.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

Reference will now be made in detail to exemplary embodiments of the present general inventive concept, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The exemplary embodiments are described below in order to explain the present general inventive concept while referring to the figures.

FIG. 1 is a diagram illustrating an electronic apparatus 100 according to an embodiment of the present inventive concept. The electronic apparatus 100 may be a mobile device having one or more camera units to photograph an object disposed in a front side and/or a back side of the mobile device. The electronic apparatus 100 includes a housing 101, a display unit 102 disposed on the housing 101 to display an image on a display area DA having a display center line DCL, and a sensing unit 103 having a sensing element to sense an object disposed around the electronic apparatus 100.

The sensing unit 103 may include the one or more camera units having a sensing center line SCL to generate an image corresponding to the photographed object with respect to the display area DA. The sensing center line SCL and the display center line DCL are spaced apart from each other. Although the sensing center line SCL is illustrated in a left-right direction of FIG. 1, the sensing center line SCL may be disposed at a line perpendicular to a surface of the housing 101, for example, the display area DA. Although the display center line DCL is illustrated in a left-right direction of FIG. 1, the display center line DCL may be disposed at a line perpendicular to a surface of the housing 101, for example, the display area DA.

As an example, when the sensing unit is a camera to photograph an object, and the display area DA displays an image corresponding to the photographed object, a center of the displayed image of the photographed object may be not identical to a center of the photographed object due to a distance between the sensing center line SAC and the display center line DCL. When an object approaches toward a portion of the display area DA in a direction perpendicular to a surface of the display area DA, the image of the photographed object is not displayed to move toward the portion of the display area DA in a direction perpendicular to a surface of the display area DA. As another example, when an object moves toward or disposed at a center of the display area DA, the image of the photographed object is not displayed at the center of the display area DA but is displayed at another portion spaced apart from the center of the display area DA.

When a user is disposed in front of the electronic apparatus to face the display area DA and a user finger or tool is disposed over or moves toward a point of the display area DA, a photographed image of the user finger or tool is displayed on the display area DA differently as if the user finger or tool is disposed over or moves toward another point of the display area DA. The photographed position (location) or movement of the user finger or tool may be referred to a virtual position (location) or movement of the object, and the position (location) or movement of the object with respect to the display area DA may be referred to an actual or physical position (location) or movement of the object. The virtual position or movement of the object in the photographed or sensed image with respect to the display area DA may be different from the actual position or movement with respect to the display area DA. Therefore, the electronic apparatus may not determine or recognize the status of the object as a user input according to the virtual position or movement in the photographed or sensed image but may generate an error in determining or recognizing the virtual position of movement of the object as a user input with respect to the display area DA. Accordingly, the virtual position (location) or movement of the photographed image of the object may be modified or corrected to the actual or physical position (location) or movement such that the status of the object can be determined as a user input with respect to a point of the display area DA. This modification or correction allows the electronic apparatus to determine or recognize a user input from the physical location or movement of the object with respect to the display area DA.

FIG. 2 is a block diagram illustrating an electronic apparatus 200 according to an embodiment of the present inventive concept. The electronic apparatus 200 may be the electronic apparatus 100.

The electronic apparatus 200 includes a controller 210, a memory unit 220, an interface 230, a sensing unit 203, and an input/output unit 204. The controller 210, the memory 220, the interface 230, the sensing unit 203 and the input/output unit 204 may be included in a single housing. However, it is possible that at least one of the memory 220, the interface 230, the sensing unit 203 and the input/output unit 204 may be connected to the housing. The sensing unit 203 may correspond to the sensing unit 103 of FIG. 1, and the input/output unit 204 may correspond to the display unit 102 of FIG. 1. The memory unit 220 may store data usable to perform functions of the electronic apparatus 200. The memory unit 220 may be a semiconductor memory device, a read-only memory (ROM), a random-access memory (RAM), a flash memory, a semiconductor chip package, CD-ROMs, magnetic tapes, floppy disks, and optical data storage devices. The input/output unit 204 may be a display device to display an image or a touch panel to receive a user input. The input/output unit 204 may include an audio element to generate an audio signal alone or together with an image displayed on a display unit according to a user input or data processed in the controller 210.

The sensing unit 203 may include one or more cameras to photograph an object and/or a sensing element to sense an object disposed over a display area of the display device or touch panel. The photographed or sensed object may be displayed as an image on the display area DA. However, it is possible that the photographed or sensed object may not be displayed as an image but may be usable as a user input (command or data) to correspond to a portion (icon or menu) of the display area DA. It is also possible that the photographed or sensed object may not be displayed as an image of the photographed object but may be displayed as a symbol representing the photographed or sensed object with respect to the display area DA. That is, when the sensing unit 203 is in a camera mode, the photographed object is displayed as an image on the display area DA. When the sensing unit 203 is in a sensing mode, the sensed object is usable as a user input (or user data input) to correspond to a portion (icon or menu selection or a user command) of the display area DA. It is also possible that in a combination mode, the photographed object is displayed on the display area DA, the icon or menu is displayed on the display area DA, and the photographed (or sensed) object is used as a user input to control or perform a function of the icon (or menu) of the display area or to control the displayed image or to control the sensing unit 203. The camera mode, the sensing mode, and the combination mode can be selected in a menu screen of the display area DA or can be selected according to a selection of a button corresponding to the respective mode according to a user input.

The input/output unit 204 may be a display unit to display an image, and/or an input unit to input a user input (command or data). The input/output unit 204 may have a display area DA of a screen (panel) to display an image photographed by a camera, to display a menu icon, to receive a user touch as a user input through the displayed menu icon, and to display an image sensed by the sensing element. The panel may be a touch panel. The touch panel is well known, detail descriptions thereof are omitted. The input/output unit 204 may separately or independently generate or receive the photographed image, the displayed menu icon, the received user input, and the sensed image in corresponding modes according to a user design or preference. It is possible that the input/output unit 204 may simultaneously generate or receive the photographed image, the displayed menu icon, the received user input, and the sensed image in corresponding modes according to a user design or preference. It is also possible that the input/output unit 204 may generate a combination of the photographed image, the displayed menu icon, the received user input, and the sensed image according to a user design or preference.

The controller 210 may generate a menu option to be displayed on the display area DA. The menu option may include a first menu option to select a camera mode in which a camera photographs an object and generates the photographed image to be displayed on the display area DA, a sensing mode in which a sensing unit senses an object disposed over the display area DA and generates the sensed image corresponding to the sensed object to be displayed on the display area DA, and a combination mode in which a camera is usable as a camera and a sensing element to perform both functions of the camera and the sensing element. Here, the photographed image is an image photographed by a camera and the sensed image is a symbol of the sensed object. Therefore, when one or more objects are photographed, the photographed objects are displayed on the display area DA, and at least one of the photographed objects may be sensed as the sensed image to be displayed as a symbol representing at least a portion of the one object. The photographed image and the sensed image may overlap on the display area DA. And also the menu icon and the sensed image may overlap on the display area DA. The sensed image may be useable as a user input corresponding to a menu icon displayed on the display area DA of the screen so that the controller 210 can determine that a menu icon is selected according to a location of the sensed image and can perform a function of the menu icon corresponding to the sensed image.

The controller 210 may receive the photographed (or sensed) object from the sensing unit 203 and generate an image corresponding to the photographed object to be displayed on the display area. Here, it is possible that the controller 210 controls or modifies the image to display a portion of the photographed object which is disposed above the display area DA in a direction, for example, in a direction perpendicular to the display area DA such that a center line of the displayed portion of the photographed object is identical to the center DCL of the display area DA or such that an area of the display portion of the photographed object is identical to the display area DA. The sensing unit 203 may perform at least a portion of the above described function of the controller 210. According to status of the photographed or sensed object, the controller may receive a user input or command to perform a function including, but not limited to, a drag operation, a selecting operation, a data input operation, a displayed image modification operation, an communication method selecting operation, a data transmission or reception method selecting method, an external device selecting operation, an access point selecting operation, and so on. The status of the object may be a stationary or a motion between two positions in a virtual area VA of the sensing unit 203 with respect to the display area DA of the input/output unit 204.

As stated above, due to different center lines of the display area DA and the sensing unit 203, a location or movement of the photographed object with respect to the display area DA is displayed at a different location or movement within the display area DA. When an object is disposed at a position over a center of the display area DA in a direction perpendicular to the display area DA, the photographed object is displayed at a different position from the center of the display area DA. However, the photographed object disposed at a position over a center of the display area DA in the perpendicular direction may be displayed at the center of the display area DA by analyzing and modifying a photographed object image. The controller 210 may control, adjust, or modify a location or movement of an object photographed with respect to the sensing unit 203 to correspond to a location and a movement with respect to display area DA. In this case, an object disposed at another portion which is not in an area corresponding to the display area DA in the perpendicular direction may not be displayed in the display area. An object disposed in an area corresponding to the display area DA in the perpendicular direction may be displayed in the display area. The sensing unit 203 may perform at least a portion of the above described function of the controller 210.

The controller 210 may include a look-up table usable to analyze a first state of the object in the photographed or sensed object in the virtual area VA and to convert (correct or modify) the first state of the object into a second state of the object with respect to the display screen DA as the status of the object. The look-up table may include information on coordinates of the virtual area VA and the display screen and information on a virtual location (or movement) of the object in the photographed or sensed image in the virtual area VA and an actual or physical location (or movement) of the object with respect to the display area DA. When the object is disposed or moved in the virtual area VA, the sensing unit 203 photographs the object to generate the photographed or sensed image of the object with respect to the coordinate of the virtual area VA. And then a location or movement of the photographed or sensed image of the object is analyzed and modified to a different location or movement with respect to the coordinate of the display screen. Since the coordinates of the virtual area VA and the display area DA are same, the object is represented in the coordinate of the display area DA at a different location or movement from the location or movement in the virtual area VA. Although the coordinates of the virtual area VA and the display area DA are same, the virtual location or movement of the object photographed or sensed with respect to the virtual area VA may be different from the actual or physical location or movement of the object with respect to the display area DA according to a distance between the sensing center line SCL of the sensing unit 203 and the display center line SCL of the input/output unit 204 or according to a distance from the sensing center line SCL to the location of the object in the virtual area VA.

The interface 230 communicates with an external device 260 using a wired or wireless communication method to transmit data to the external device 260 and to receive data from the external device 260 according to a user input. The controller 210 controls the above described units and elements of the electronic apparatus 200. The controller 210 may include one or more semiconductor processors to perform functions of the electronic apparatus 200.

FIG. 3 is a view illustrating a sensing area SA and a display area DA in an electronic apparatus according to an embodiment of the present general inventive concept. A camera (or sensing element) C1 as the sensing unit 203 of FIG. 2 photographs an object in the sensing area SA having a photographing angle “a” and a sensing center line SCL. A virtual area VA is disposed in the sensing area SA to correspond to the display area DA in a direction perpendicular to the display area DA. The sensing center line SCL of the camera C1 may be parallel to a display center line DCL of the display area DA. It is possible that sensing center line SCL of the camera C1 may not be parallel to a display center line DCL of the display area DA to control or adjust a distance d1 which is a distance between the display area DA and a boundary of a virtual plane VP or a boundary SAb of the sensing area SA. The distance D1 may be adjustable when the camera C1 is adjustably installed in the housing 101 of FIG. 1 to change the sensing center line SCL.

FIG. 4 is a view illustrating a sensing unit and a display screen in an electronic apparatus according to an embodiment of the present general inventive concept. The sensing unit 203 may have the camera C1 of FIG. 3 to have a first sensing center line SCL1 and a first sensing area SA1, and a camera C2 to have a second sending center line C2 and a second sensing area SA2. The virtual plane VP may be disposed in an overlap area of the first sensing area SA1 and the second sensing area SA2. The virtual plane VP may be disposed between the first sensing center line SCL1 and the second sensing center line SCL2. The virtual area VA is disposed over the display area DA in a perpendicular direction within the overlap area. The virtual plane VP may be spaced apart from the display area DA by a distance d2. The distance d2 may also be adjustable according to an adjustably installation of the camera C1 and the camera C2.

FIGS. 5 and 6 are views illustrating an object sensed by a sensing unit of an electronic apparatus according to an embodiment of the present inventive concept. One or more icons (or menus) Ma, Mb, . . . , Mn may be displayed on the display area DA. The virtual area VA is disposed over the display area in a perpendicular direction. When an object, for example, a user's finger Pob is disposed over the virtual area VA or moves toward or away from the virtual area VA. The sensing unit 203 senses the object disposed in the virtual area VA, and the controller 210 may determine whether a location (or position) of the object is disposed to correspond to one of the icons Ma, Mb, . . . , Mn of the display area DA.

When the controller 210 determines that the object is disposed at a location (or position) Vpa corresponding to the icon Ma of the display area DA, the controller 210 may determine that the icon Ma is selected so that a corresponding function of the icon Ma can be performed. The controller 210 may determine the presence or existence of the object in the virtual area VA as a user input. The object can be represented by a stationary object disposed at a position or a movable object movable between two positions. The controller 210 may control the input/output unit 204 to display a character or sign Tpa within the corresponding icon Ma of the display area DA to represent that the icon Ma is selected. It is possible that the icon Ma is highlighted or emphasized. The controller 210 processes the function corresponding to the user input and controls the input/output unit 204 to generate an output, for example, displaying an image corresponding to the processed function, communicating with other device, or transmitting or receiving data according to the processed function.

Since the display area DA includes a touch screen, the controller 210 may receive a user input from a touch input though the input/output unit 204 and/or a sensed object though the sensing unit 203. For example, a touch input on the icon MA of the display area DA and a sensed object in the virtual area are determined as a user input to control the electronic apparatus.

FIGS. 7 and 8 are views illustrating a point of a virtual area to correspond to a display point of a display area in an electronic apparatus according to an embodiment of the present inventive concept. An object, for example, a user finger Pob, moves toward or disposed at a position VPa or VPb with respect to a display center line DCL of the display area DA in the virtual area VA. The positions VPa and TPa of FIG. 7 are opposite to the positions VPb and TPb of FIG. 8 with respect to the display center line DCL of the display area DA. All of the positions VPa, VPb, TPa, TPb are disposed in a side of the sensing center line SCL of the sensing unit 203.

FIGS. 9 and 10 are views illustrating a status of an object corresponding to a virtual point with respect to a virtual area and a display area in an electronic apparatus according to an embodiment of the present inventive concept. When an object moves between two positions with respect to a position VPa in a first direction of FIG. 9 or in a second direction of FIG. 10, the controller 210 determines the presence, existence, or movement of the object as a user input to select the icon Ma, and then perform the corresponding function. Although FIGS. 9 and 10 illustrate two directions, the present general inventive concept is not limited thereto. The controller 210 may detect the movement of the object in a direction other than the two directions of FIGS. 9 and 10.

FIGS. 11 and 12 are views illustrating objects sensed by a sensing unit in an electronic apparatus according to an embodiment of the present inventive concept. When the sensing unit 203 senses two or more objects, the controller 210 may provide a priority to at least one of objects to determine a user input. For example, when there are two objects in the virtual area VA, the controller 210 may determine that a user finger Pob has a higher priority than a user face as a user input. It is also possible that a distal end T of the user finger Pob can have a higher priority than other portions of the user finger Pob as a user input. The user input can be determined according to the presence, existence, and movement of the distal end T of in the virtual area,

FIG. 13 is a view illustrating a location of a sensor of a sensing unit in an electronic apparatus according to an embodiment of the present inventive concept. The sensing unit may be a camera having a lens unit, and the lens unit may have a photographing angle to define a sensing area SA and a sensing center line SCL disposed at a center of the sensing area SA. The sensing area SA may have two sensing areas SAa and SAb which are disposed opposite to each other with respect to the sensing center area SCL. The lens unit may have a sensor which may not disposed at a center area but disposed at a side Sa or Sb with respect to the sensing center line SCL to sense one of the two sensing areas SAa and SAb. In this case, one of the two sensing areas SAa and SAb may not be sensed by the sensor disposed at the side.

FIGS. 14A, 14B, 15A, and 15B are views illustrating a virtual area of a sensing unit and a display area of a display unit according to an embodiment of the present inventive concept. The virtual area VA to detect an object as a user input is disposed at one side of the sensing area SA, for example, the virtual plane VP, with respect to the sensing center line SCL. The sensing area SA and the display area DA are illustrated in a vertical direction in FIGS. 14A and 14B and in a horizontal direction in FIGS. 15A and 15B, according to a location of the sensing unit with respect to the display area DA.

FIG. 16 is a view illustrating a location of a sensing unit in an electronic apparatus according to an embodiment of the present inventive concept. The sensing unit may be disposed at a center of the display area DA or at a position on the display center line DCL and/or the sensing center line SCL. The lens unit may be disposed at a bottom DPb of a display panel (touch panel) DP. The display panel DP may be a liquid crystal device (LCD) having a screen corresponding to the display area DA, a circuit element to form an image to be displayed on the screen, and a light element to generate light toward the circuit element. The sensing unit may be disposed at a center of the LCD. In this case, the LCD may provide a transparent condition to a portion corresponding to the sensing unit such that the sensing unit senses the object through the LCD. The light element may have a portion corresponding to the sensing unit to prevent interference with the sensing operation of the sensing unit. The display panel DP may be formed with an LED unit having a number of LEDs. In this case, the LED unit may have a portion without an LED to prevent interference with the operation of the sensing unit.

FIG. 17 is a view illustrating a virtual area of a sensing unit and a display area of a display unit according to an embodiment of the present inventive concept. When the sensing unit is disposed at the center of the display area DA, the virtual area VA is disposed in the display area DA, and the sensing center line SCL and the display center area SCL are identical to each other.

FIGS. 18A and 18B are views illustrating a virtual point displayed on a display area of a display unit in an electronic apparatus according to an embodiment of the present inventive concept. When an object Ob is sensed to correspond to one of icons Ma, Mb, and Mc, a symbol SYM is displayed at the corresponding icon Ma, Mb, or MC on the display area DA, as illustrated in FIG. 18A. The symbol SYM representing the sensed object may be disposed at a center portion or a side portion of an area of the corresponding icon Ma, Mb, and Mc. When the object is sensed to be disposed at a portion which does not correspond to one of the icons Ma, Mb, and Mc, it is possible that a symbol SYM may be displayed at a point outside the icons MA, Mb, or Mc, as illustrated in FIG. 18B. The symbol SYM may be a dot, a flash, a brink, or a sign. However, the present general inventive concept is not limited thereto. The symbol may be a characteristic change of the corresponding one of the icons Ma, Mb, and MC while the other icons do not show any characteristic change.

FIGS. 19 and 20 are flowcharts illustrating a method of inputting a user command using a sensing unit in an electronic apparatus according to an embodiment of the present inventive concept.

Referring to FIG. 19, when a sensing unit, for example, a camera, is turned on, activated, or starts one of functions thereof in operation 1910, an object exists in the photographed image in operation 1920. A virtual area is extracted from the photographed image in operation 1930. An object is extracted from the virtual area in operation 1940. The status of the object is analyzed and determined as a user input when the object is disposed at a position corresponding to an icon displayed on a display area in operation 1950. A function corresponding to the icon is performed in operation 1960.

Referring to FIG. 20, when a sensing unit, for example, a camera, is turned on, activated, or starts one of functions thereof in operation 2010, an object is detected from a virtual area corresponding to a display area in operation 2020. A coordinate of the virtual area corresponds to a coordinate of the display area. When a position of the object with respect to the coordinate of the virtual area corresponds to a position of an icon with respect to the coordinate of the display area, it is determined that the presence, existence, or movement of the object is a user input in operation 2030. A function of the icon is performed in operation 2040.

FIG. 21 is a view illustrating a location of a sensing unit in an electronic apparatus 2100 according to an embodiment of the present inventive concept. The sensing unit may be one or more sensing elements disposed positions 2103 a, 2103 b, 2013 c, and 2103 d around a display area DA of a display panel 2102 on a housing 2101. When one or more cameras are included in the sensing unit, the cameras may be installed at positions 2104 and at least one of the positions 2103 a, 2103 b, 2013 c, and 2103 d. It is possible that the sensing element and the camera may be same to photograph an object as a photographing mode and to sense an object as a user input with respect to the display area DA in a sensing mode. Accordingly, the camera can be usable in one of the photographing mode and the sensing mode or also usable in both the photographing mode and the sensing mode at the same time. In this case, an image corresponding to the photographed object has a center corresponding to the sensing center line SCL, and an image corresponding to the sensed object in the virtual area VA may have a center corresponding to the display center line SCL. When the object disposed at a position on the display center line DCL is photographed and displayed at a position different from the display center line DCL. However, when the object disposed at a position on the display center line DCL is sensed and analyzed to be disposed at a position on the display center line SCL according to coordinates of the display area DA and the virtual area VA.

FIGS. 22 and 23 are views illustrating an electronic apparatus having a sensing unit installed thereon according to an embodiment of the present general inventive concept. FIG. 22 illustrates that a sensing unit is installed at a side of the display area DA such that a sensing center line SCL is perpendicular to the display area DA and a boundary line BL is inclined to spaced apart from the display area according to a distance from the sensing center line SCL or the sensing unit. FIG. 23 illustrates that a sensing unit is installed at a side of the display area DA such that a sensing center line SCL is not perpendicular to the display area DA. The sensing unit may be installed such that a boundary line BL can be substantially parallel to the display area DA. However, the present general inventive concept is not limited thereto. The boundary line BL may be spaced apart from the display area DA by a distance so that the sending unit can sense a user finger or tool disposed adjacent to the display area DA. The sensing unit may have a sub-housing with a lens unit having the sensing center line SC, and the sub-housing may be installed in the sub-housing at an inclination angle with a plane of the display area DA. A method of installing a sensing unit on a housing is well known, detail description thereof is omitted. It is possible that the boundary line BL of FIG. 23 may be inclined with respect to the display area DA. In this case, an inclination angle lAb of the boundary line BL of FIG. 23 is smaller than an inclination angle lAa of the boundary line BL of FIG. 22. A hatched portion is a virtual area of a sensing area disposed above the display area DA in a direction perpendicular to the display area DA.

The present general inventive concept can also be embodied as computer-readable codes on a computer-readable medium. The computer-readable medium can include a computer-readable recording medium and a computer-readable transmission medium. The computer-readable recording medium is any data storage device that can store data as a program which can be thereafter read by a computer system. Examples of the computer-readable recording medium include a semiconductor device, a read-only memory (ROM), a random-access memory (RAM), a flash memory, a semiconductor chip package, CD-ROMs, magnetic tapes, floppy disks, and optical data storage devices. The computer-readable recording medium can also be distributed over network coupled computer systems so that the computer-readable code is stored and executed in a distributed fashion. The computer-readable transmission medium can transmit carrier waves or signals (e.g., wired or wireless data transmission through the Internet). Also, functional programs, codes, and code segments to accomplish the present general inventive concept can be easily construed by programmers skilled in the art to which the present general inventive concept pertains.

As described above and also illustrated in the drawings, a user may input a user command on a virtual area corresponding to a display area without touching the display area in an electronic apparatus according to an embodiment of the present inventive concept. Also, the virtual area may be spaced apart from the display area, disposed parallel to the display area, and disposed to overlap the display area in a vertical direction from the display area in the electronic apparatus such that an object can be sensed to correspond to the same point in the virtual area and the display area in the vertical direction according to an embodiment of the present general inventive concept.

Moreover, as described above and also illustrated in the drawings, the electronic apparatus may include a housing, a display unit installed in the housing and having a display area to display an image or a menu icon, a sensing unit installed in the housing adjacent to the display unit, and having a virtual area to sense an object which is disposed over the display area of the display unit, the virtual area defined by a boundary extended from the display area in a direction perpendicular to the display area, and a controller to analyze status of the object according to an original state of the object and a sensed state of the object, and to determine the analyzed status of the object as a user input.

The original state of the object and the sensed state of the object with respect to the display area may be different from each other according to a difference between center lines of the sensing unit and the display area of the display unit.

The controller may adjust the sensed state of the object to the original state of the object with respect to the display area to determine whether the status of the object corresponds to the user input to the display area.

The controller may control the display unit to display a symbol representing the status of the object with respect to the display area.

The symbol may be displayed on the menu icon or outside the menu icon in the display area according to a location of the status of the object with respect to the display area.

The virtual area and the display area may overlap in the boundary in the perpendicular direction.

The menu icon may be disposed in the display area, and the object may be disposed in the virtual area to correspond to the menu icon of the display area.

The sensing unit may have a sensing area with a sensing center line and the display area has a display center line which is spaced apart from the sensing center line by a distance.

The virtual area may be disposed in a side of the sensing area with respect to the sensing center line, and the controller may extract the virtual area from the sensing area.

When the object moves a first distance in a first direction within the virtual area, the sensing unit may sense the object moving a second distance in a second distance since a sensing center line of the sensing unit is not a center line of the virtual area, and the controller may analyze the status of the object according to differences between the first and second distances and between the first and second distances and determines the status of the object as the user input with respect to the display area.

When the object moves toward a first position of the display area, the sensing unit may sense the object moving toward a second position of the display area in the virtual area, the second position being different from the first position. The controller may adjust the second position to the first position with respect to the display area.

The sensing unit may sense the object at a first position with respect to the virtual area, and the controller may convert the sensed first position into a second position with respect to the display area as the status of the object and determines the status of the object as the user input.

The display area and the virtual area may have a same coordinate, the sensing unit may sense the object in the coordinate of the virtual area, and the controller may determine the status of the object as the user input from the sensed object according to the coordinate of the display area.

The virtual area is disposed to overlap the display area in a vertical direction from the display area, and the controller may determine whether the status of the sensed object of the virtual area corresponds to the menu icon of the display area, and also determine the status of the sensed object as the user input of the menu icon to perform a function of the menu icon.

The sensing unit may sense one or more sub-objects, and the controller may determine one of the one or more sub-objects as the object.

The sensing unit may sense a user face and a user finger, and the controller may determine the user finger as the object.

The sensing unit may sense a user finger as the object, and the controller determines a distal end of the user finger as the status of the object.

The sensing unit may have a sensing center line to have an angle with a display center line of the display area, and the sensing center line of the camera may not be parallel to the display center line of the display area.

The sensing unit may be a camera having a photographing area to photograph the object. The controller may extract from the photographing area the virtual area including the object disposed over the display area, and may also determine from the photographed image that the object is disposed over the menu icon in a direction perpendicular direction from the display area.

The display unit may be a touch panel usable as an output unit to display the image or the menu icon and an input unit to receive the user input to control the image or the menu icon. The sensing unit may include a lens unit with a sensing area in which the virtual area and a non-virtual area are included, and the lens unit includes a sensor to photograph the virtual area.

The display unit may include a display panel having the display area, and the sensing unit is disposed at a bottom area of the display panel of the display unit.

Furthermore, as described above and also illustrated in the drawings. The electronic apparatus may include a housing, a display unit installed in the housing, and having a display area usable as an output unit to display an image or a menu icon and an input unit to receive a user input to control a function of the electronic apparatus including the image or the menu icon, a sensing unit installed in the housing adjacent to the display unit, and having a camera with a photographing area including a virtual area to sense an object which is disposed over the display area of the display unit, the virtual area defined by a boundary extended from the display area in a direction perpendicular to the display area, and a controller to analyze status of the object according to an original state of the object and a sensed state of the object, and to determine the analyzed status of the object as the user input.

Furthermore, as described above and also illustrated in the drawings, the electronic apparatus may perform a method including providing a housing with a display unit having a display area to display an image or a menu icon, and a sensing unit installed adjacent to the display unit and having a virtual area to sense an object which is disposed over the display area of the display unit, the virtual area defined by a boundary extended from the display area in a direction perpendicular to the display area, and analyzing status of the object according to an original state of the object and a sensed state of the object, and determining the analyzed status of the object as a user input.

Furthermore, as described above and also illustrated in the drawings, the present general inventive concept may be implemented as a computer-readable medium to contain computer-readable codes as a program to perform the method described above in the electronic apparatus.

Although a few exemplary embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these exemplary embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents. 

What is claimed is:
 1. A mobile device, comprising: a housing having a front side and a rear side; an input and output installed in the housing, and comprising a panel on the front side of the housing to receive a user input and to display a photographing image or a menu; a sensing unit installed on the front side of the housing, and having a first camera and a second camera respectively having a first virtual area and a second virtual area which correspond to a display area of the panel; and a controller installed in the housing, configured to perform a photographing mode to control the first camera to photograph the first virtual area corresponding to the display area of the panel to generate a first photographing image, and to control the display unit to display the first photographing image in the display area of the panel, and configured to perform a sensing mode to control the second camera to photograph the second virtual area including an object corresponding to the display area of the panel to generate a second photographing image including the object, to determine a state of the object of the second photographing image as the user input to the menu, and to perform a function of the mobile device according to the menu and the state of the object as the user input to the menu.
 2. The mobile device of claim 1, further comprising: a memory to store information, wherein the controller is configured to compare the information and the state of the object and to perform the function of the mobile device according to the menu and the comparison.
 3. The mobile device of claim 1, wherein the controller is configured to analyze the object of the second photographing image with respect to the display area of the panel to sense the state of the object, and to perform the function of the mobile device according to the menu and the analysis.
 4. The mobile device of claim 1, wherein the controller is configured to modify the object of the second photographig image with respect to the display area of the panel to sense the state of the object, and to perform the function of the mobile device according to the menu and the modification.
 5. The mobile device of claim 1, wherein the second camera photographs the object of the second virtual area when the menu is displayed in the display area of the panel.
 6. The mobile device of claim 1, wherein the second camera generates the second photographing image corresponding to the second virtual area, and the controller extracts the object from the second photographing image to sense the state of the object and performs the function of the mobile device according to the menu and the extraction.
 7. The mobile device of claim 1, wherein the controller is configured to display an image corresponding to the object over the menu of the display area of the panel.
 8. The mobile device of claim 1, wherein the controller is configured to control the input and output unit to generate an output of the performed function of the mobile device, and the output comprises an image output through the display area of the panel, an audio output through an audio element, or a data output through an interface to an external device.
 9. The mobile device of claim 1, further comprising: an interface configured to communicate with an external device to transmit or receive data to perform the function of the mobile device, wherein the controller is configured to perform the function of the mobile device according to the menu of the input and output unit, the state of the object as the user input to the menu, and the data of the external device.
 10. The mobile device of claim 1, wherein: the second virtual area includes a plurality of sub-objects, one of which has a higher priority than others; and the controller selects the one sub-object with the higher priority as the object corresponding to the menu.
 11. A method of a mobile device, the method comprising: providing a housing having a front side and a rear side, an input and output installed in the housing and comprising a panel on the front side of the housing to receive a user input and to display a photographing image or a menu, and a sensing unit installed on the front side of the housing, and having a first camera and a second camera each respectively having a first virtual area and a second virtual area which correspond to a display area of the panel of the input and output unit; using a controller processor installed in the housing, configured to perform a photographing mode to control the first camera to photograph the first virtual area corresponding to the display area od the panel to generate a first photographing image, and to control the display unit to display the first photographing image in the display area of the panel, and configured to perform a sensing mode to control the second camera to photograph the second virtual area including an object corresponding to the display area of the panel to generate a second photographing image including the object, to determine a state of the object of the second photographing image as the user input to the menu, and to perform a function of the mobile device according to the menu and the state of the object as the user input to the menu.
 12. The method of claim 11, wherein: the mobile device further comprises a memory to store information; and the method further comprises comparing the information and the state of the object and to perform the function of the mobile device according to the menu and the comparison.
 13. The method of claim 11, wherein the method further comprises analyzing the object of the second photographing image to sense the state of the object, and performing the function of the mobile device according to the menu and the analysis.
 14. The method of claim 11, wherein the method further comprises modifying the object of the second photographing image with respect to the display area of the panel to sense the state of the object, and performing the function of the mobile device according to the menu and the modification.
 15. The method of claim 11, wherein the controlling the second camera comprises controlling the second camera to photograph the object of the second virtual area during displaying the menu in the display area of the panel.
 16. The method of claim 11, further comprising: displaying an image corresponding to the object over the menu of the display area of the panel.
 17. The method of claim 11, further comprising: controlling the input and output unit to generate an output of the performed function of the mobile device, wherein the output comprises an image output through the display area of the panel, an audio output through an audio element, or a data output through an interface to an external device.
 18. The method of claim 11, further comprising: an interface configured to communicate with an external device to transmit or receive data to perform a function of the mobile device, wherein the controller is configured to perform the function of the mobile device according to the menu, the state of the object as the user input to the menu, and the data of the external device.
 19. The method of claim 11, wherein: the second virtual area includes a plurality of sub-objects, one of which has a higher priority than others; and the method further comprises selecting the one sub-object with the higher priority as the object corresponding to the menu.
 20. A non-transitory computer-readable medium containing computer-readable codes as a program to perform the method of claim
 11. 